Comprehensive problem bank organized across 7 thematic volumes, common pitfalls, anti-patterns, and master revision cheat sheets.
Curated 100 benchmark problems spanning prefix sums, sliding window, two pointers, matrices, and string parsing.
60 benchmark problems covering in-place reversals, LRU cache design, monotonic stacks, and ring buffers.
80 problems mastering hash tables, frequency counters, prefix hash lookups, and binary search on monotonic answer spaces.
100 problems covering tree traversals, LCA, subtree sums, BST balancing, priority queues, and trie prefix matches.
70 problems covering connected components, topological ordering, Dijkstra, Bellman-Ford, Kruskal, and bipartite matching.
60 classical DP problems: 0/1 Knapsack, Unbounded Knapsack, LCS, LIS, Matrix Chain Multiplication, and Digit DP.
55 problems covering interval scheduling, N-Queens, bitmask combinatorics, prime factorizations, and Segment Trees.
Analysis of common mental traps: array pass-by-reference side effects, off-by-one bounds, Dijkstra with negative weights, and recursion limits.
The ultimate interview cheat sheet: complexity summary matrix, master formula list, and 48-hour interview prep review checklist.